<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>01-Html5新增语义化标签</title>

  <style>
    header,
    nav {
      width: 800px;
      height: 50px;
      background-color: pink;
      border-radius: 15px;
      text-align: center;
      margin: 15px auto;
    }
  </style>

</head>
<body>

  <header>头部标签</header>
  <nav>导航标签</nav>
  <div>
    
    <article>
      内容标签
      <section>
        区域标签
      </section>
    </article>

    <article>
      内容标签
    </article>
  </div>

  <footer>
    尾部数据
  </footer>
  
</body>
</html>